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Fact Families

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by

janet kanopsic

on 31 December 2012

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Transcript of Fact Families

Fact Families First
we add with

4 6 10

How? Add the 2 smaller numbers together like this:
4 + 6 = 10

Now write the turn around fact
like this:
6 + 4 = 10

How? Start with the number that is greater. Which is greater


That's correct!
10 4 or 6 or 10 ? Subtract

10 - 4 = 6
Now write the related subtraction fact.
10 - 6 = 4 Now put it all together
and you have a
Fact Family!

Meet the
4 6 10
Family!

4 + 6 = 10
6 + 4 = 10
10 - 4 = 6
10 - 6 = 4 Now you try.

4 5 9

___ + ___ = ___
___ + ___ = ___
___ - ___ = ___
___ - ___ = ___ Check your work.

4 + 5 = 9
5 + 4 = 9
9 - 4 = 5
9 - 5 = 4 9
4 5

4 5 9
5 4 9
9 5 4
9 4 5
1
4 5 3 5

2 Let's learn about
Fact Families!

Numbers in a Fact Family are related.
You can add +
and
subtract -
with these same numbers. Let's start with the

4 6 10

Fact Family. 4 6 10 4 6 10 Next we subtract
with Fact Families
are
FUN!
Full transcript